It's wrong anyway. Even back in 2008, it was more than 50 watt hours per liter. The graph is taken straight from the DOE website, here: https://www.energy.go

It's wrong anyway. Even back in 2008, it was more than 50 watt hours per liter. The graph is taken straight from the DOE website, here: https://www.energy.gov/eere/vehicles/articles/fotw-1234-april-18-2022-volumetric-energy-density-lithium-ion-batteries#:~:text=In%202008%2C%20lithium%2Dion%20batteries,450%20watt%2Dhours%20per%20liter https://www.energy.gov/eere/vehicles/articles/fotw-1234-apri.... Without attribution of course. They just re cited the paper the DOE cites. The paper has no such graph: https://www.osti.gov/pages/servlets/purl/1842609 https://www.osti.gov/pages/servlets/purl/1842609 The graph is clearly wrong.